China Calculator MA 991 Ex
- LCD display.
- 9 variable memories.
- Non stick keys.
- 16 digit display.
- Auto shut off.
- 552 functions.
- Algebraic logic.
- Regression analysis.
- Statistical functions.
- Hyperbolic.
- 24 levels of parenthesis.
- Metric.
- Dual power source, solar with battery back up.
